{"product_id":"lcd2004-20x4-i2c-character-lcd-display-blue-backlight","title":"LCD2004 20×4 Character LCD Display with I2C Adapter — Blue Backlight","description":"\u003ch2\u003eLCD2004 20×4 Character LCD Display with I2C Adapter — Blue Backlight\u003c\/h2\u003e\n\n\u003cp\u003eThe \u003cstrong\u003eLCD2004 with I2C adapter\u003c\/strong\u003e — a \u003cstrong\u003e20-character × 4-line HD44780 character LCD\u003c\/strong\u003e with a \u003cstrong\u003ePCF8574 I2C backpack\u003c\/strong\u003e pre-soldered. Display 80 characters of text, numbers, and custom characters using only \u003cstrong\u003e2 wires (SDA + SCL)\u003c\/strong\u003e. The largest standard character LCD available with I2C interface — ideal for displaying multiple sensor readings, menus, and status information simultaneously.\u003c\/p\u003e\n\n\u003ch3\u003eKey Specifications\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eDisplay: \u003cstrong\u003e20 characters × 4 lines\u003c\/strong\u003e | Controller: \u003cstrong\u003eHD44780\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003eInterface: \u003cstrong\u003eI2C via PCF8574\u003c\/strong\u003e | I2C address: \u003cstrong\u003e0x27 (default, adjustable)\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003eSupply: \u003cstrong\u003e3.3–5V\u003c\/strong\u003e | Backlight: \u003cstrong\u003eBlue with white characters\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003eContrast: \u003cstrong\u003eAdjustable via on-board potentiometer\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003eLibrary: \u003cstrong\u003eLiquidCrystal_I2C (Arduino)\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003eCompliance: \u003cstrong\u003eRoHS compliant\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhy LCD2004 I2C?\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e✅ \u003cstrong\u003e80 characters across 4 lines\u003c\/strong\u003e — display temperature, humidity, pressure, and time simultaneously\u003c\/li\u003e\n\u003cli\u003e✅ \u003cstrong\u003eOnly 2 wires\u003c\/strong\u003e — SDA + SCL, freeing Arduino pins for sensors and actuators\u003c\/li\u003e\n\u003cli\u003e✅ \u003cstrong\u003ePre-soldered I2C backpack\u003c\/strong\u003e — ready to use, no soldering required\u003c\/li\u003e\n\u003cli\u003e✅ \u003cstrong\u003eLiquidCrystal_I2C library\u003c\/strong\u003e — same code as LCD1602 I2C, just change dimensions\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eTypical Applications\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eMulti-sensor data display (4 readings simultaneously)\u003c\/li\u003e\n\u003cli\u003eArduino menu system with 4-line navigation\u003c\/li\u003e\n\u003cli\u003eWeather station display (temperature, humidity, pressure, time)\u003c\/li\u003e\n\u003cli\u003eIndustrial controller 4-line status panel\u003c\/li\u003e\n\u003cli\u003eData logger real-time status display\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Keszoox","offers":[{"title":"Default Title","offer_id":45672665153771,"sku":"","price":25.87,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0677\/1005\/8731\/files\/LCD2004-I2C-Blue.jpg?v=1723008269","url":"https:\/\/keszoox.com\/products\/lcd2004-20x4-i2c-character-lcd-display-blue-backlight","provider":"Keszoox","version":"1.0","type":"link"}